LXR uboot/board/freescale/common/ngpixis.h

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/**
   3 * Copyright 2010-2011 Freescale Semiconductor
   4 * Author: Timur Tabi <timur@freescale.com>
   5 *
   6 * This file provides support for the ngPIXIS, a board-specific FPGA used on
   7 * some Freescale reference boards.
   8 */
   9
  10/* ngPIXIS register set. Hopefully, this won't change too much over time.
  11 * Feel free to add board-specific #ifdefs where necessary.
  12 */
  13typedef struct ngpixis {
  14        u8 id;
  15        u8 arch;
  16        u8 scver;
  17        u8 csr;
  18        u8 rst;
  19        u8 serclk;
  20        u8 aux;
  21        u8 spd;
  22        u8 brdcfg0;
  23        u8 brdcfg1;     /* On some boards, this register is called 'dma' */
  24        u8 addr;
  25        u8 brdcfg2;
  26        u8 gpiodir;
  27        u8 data;
  28        u8 led;
  29        u8 tag;
  30        u8 vctl;
  31        u8 vstat;
  32        u8 vcfgen0;
  33        u8 res4;
  34        u8 ocmcsr;
  35        u8 ocmmsg;
  36        u8 gmdbg;
  37        u8 res5[2];
  38        u8 sclk[3];
  39        u8 dclk[3];
  40        u8 watch;
  41        struct {
  42                u8 sw;
  43                u8 en;
  44        } s[9];         /* s[0]..s[7] is SW1..SW8, and s[8] is SW11 */
  45} __attribute__ ((packed)) ngpixis_t;
  46
  47/* Pointer to the PIXIS register set */
  48#define pixis ((ngpixis_t *)PIXIS_BASE)
  49
  50/* The PIXIS SW register that corresponds to board switch X, where x >= 1 */
  51#define PIXIS_SW(x)             (pixis->s[(x) - 1].sw)
  52
  53/* The PIXIS EN register that corresponds to board switch X, where x >= 1 */
  54#define PIXIS_EN(x)             (pixis->s[(x) - 1].en)
  55
  56u8 pixis_read(unsigned int reg);
  57void pixis_write(unsigned int reg, u8 value);
  58
  59#define PIXIS_READ(reg) pixis_read(offsetof(ngpixis_t, reg))
  60#define PIXIS_WRITE(reg, value) pixis_write(offsetof(ngpixis_t, reg), value)
  61